49results about How to "Improve incident efficiency" patented technology

An image pickup apparatus comprises a plurality of photoelectric conversion areas, and a light adjustment area including a first transmission portion for transmitting light which is provided in association with a first photoelectric conversion area included in the plurality of photoelectic conversion areas and a second transmission portion for transmitting light which is provided in association with a second photoelectric conversion area included in the plurality of photoelectric conversion areas. The light adjustment area is configured to cause a part of light incident on the second transmission portion to be incident on the first transmission portion.

In a plane emission device comprising a transparent substrate (1), a light scattering layer (2) formed on a surface of the transparent substrate (1), and a luminescent body (3) of organic or inorganic which is formed on a surface of the light scattering layer and emits light by light or electric energy, efficiency to takeout light to outside is improved. The light scattering layer (2) contains binder (4) and two kinds of fillers (5, 6), and when a refraction index of the binder (4) is assumed as Nb, a refraction index of one of the two kinds of fillers (5, 6) is assumed as Nf1, and a refraction index of the other is assumed as Nf2, a relationship that Nf2>Nb>Nf1 is satisfied. Since the light scattering layer (2) contains two kinds of fillers (5, 6), disorder occurs in critical angle when light exits from the light scattering layer (2) to the transparent substrate (1), incidence rate of light into the transparent substrate (1) rises, and efficiency to takeout the light to outside increases.

A backlight unit (BLU) is disclosed. The BLU may include a light emitting diode (LED) module including at least one LED chip mounted on a substrate in a chip-on-board (COB) type, and a light guide panel including an incidence surface configured to receive light emitted from an emission surface of the LED chip and to include at least one insertion recess disposed corresponding to the LED chip, such that the LED chip is bonded to the LED module to be inserted in the insertion recess.

An optical lens in embodiment discloses: first and second bottom surfaces spaced apart from each other and having a longer in a second axial direction than to a first axial direction at a lower portion of a transparent body; a concave recess between the first and second bottom surfaces; plurality of incident surfaces having a first incident surface on the recess, second and third incident surfaces corresponding to each other on both sides of the recess; first and second total reflective surfaces disposed on opposite sides of the body; and a first exit surface on the body; and second and third exit surfaces on a both sides the first exit surface.

The laser-induced fluorescence confocal scanning device and method belongs to the biochip detection technology field. The fluorescence collection and usage efficiency of existing devices is low, and meanwhile the focusing control in the scanning process is very difficult. The invention uses the middle hole full reflection mirror to optical divide the incident laser and the induced reflected fluorescence, and when a laser beam passing through the aperture, the energy loss is small, almost all laser energy can be irradiated to the biochip, and when collecting the fluorescence, the fluorescence collection angle is big, not only improving the efficiency of laser incident, but also improving the fluorescence collection efficiency. Using computer control, it can maintain approximately confocal relation between the light source pinhole and the detector pinhole, and only need focus one time before scanning, making the focusing control easy and convenient.

An ion detector 1A for detecting positive ions is provided with a chamber 2 having an ion entrance 3 which allows positive ions to enter, a conversion dynode 9 which is disposed in the chamber 2 and to which a negative potential is applied, and an avalanche photodiode 30 that is disposed in the chamber 2 and has an electron incident surface 30a which is opposed to the conversion dynode 9 and also into which secondary electrons emitted from the conversion dynode 9 are made incident. The electron incident surface 30a is located closer to the conversion dynode 9 than a positioning part 14 which supports the avalanche photodiode 30 in the grounded chamber 2.

The invention discloses a reflection type liquid crystal display panel. The reflection type liquid crystal display panel comprises a first substrate, a second substrate, and a liquid crystal layer arranged between the first substrate and the second substrate, wherein the first substrate and the second substrate are oppositely arranged. A reflection layer is arranged on the first substrate, and a polarizer is arranged on the second substrate. A one-way wavelength conversion layer and a quantum dot thin film layer are further sequentially overlaid between the second substrate and the liquid crystal layer in the direction from the second substrate to the liquid crystal layer. The one-way wavelength conversion layer is made of an up-conversion material and used for converting incident ambient light into blue right or ultraviolet light to be provided for the quantum dot thin film layer. The quantum dot thin film layer comprises multiple light-emitting areas which are arranged in an arrayed mode and can be stimulated to emit light of different colors, and each light-emitting area corresponds to one sub-pixel in the liquid crystal display panel. The invention further discloses a display deice with the reflection type liquid crystal display panel.

A convex pattern in which a plurality of substantially congruent projections composed of an infrared absorbing material are arranged at a substantially constant pitch is formed on the side of a photoreceptor that is irradiated with infrared rays, or a concave pattern in which a plurality of substantially congruent holes are arranged at a substantially constant pitch is formed in an infrared absorption film disposed on the side irradiated with infrared rays, and the infrared rays incident on the photoreceptor are dispersed by the convex pattern or concave pattern. By this configuration, reflection of infrared rays is minimized, the absorption efficiency of infrared rays is increased, and the sensitivity of the thermal-type infrared detection element is enhanced. This convex pattern can be formed using a common semiconductor manufacturing device, and has excellent adhesion to the immediately underlying infrared absorption film. The reliability and uniformity of the thermal-type infrared detection element can therefore be enhanced.

In a plane emission device comprising a transparent substrate, a light scattering layer formed on a surface of the transparent substrate, and a luminescent body of organic or inorganic material which is formed on a surface of the light scattering layer and emits light by light or electric energy, efficiency to takeout light to outside is improved. The light scattering layer contains binder and two kinds of fillers, and when a refraction index of the binder is assumed as Nb, a refraction index of one of the two kinds of fillers is assumed as Nf1, and a refraction index of the other is assumed as Nf2, a relationship that Nf2>Nb>Nf1 is satisfied. Since the light scattering layer contains two kinds of fillers, disorder occurs in critical angle when light exits from the light scattering layer to the transparent substrate, incidence rate of light into the transparent substrate rises, and efficiency to takeout the light to outside increases.

A relief type diffraction optical element including a substrate made of an optical material, said substrate having formed on its surface a non-even width relief pattern which include a first zone group consisting of at least one zone whose cross sectional configuration is formed by a curvilinear portion which follows a phase shift function or at least two rectilinear portions which approximates the phase shift function, and a second zone group consisting of a plurality of zones each having a single rectilinear portion approximating the phase shift function.

Disclosed herein is an electronic apparatus, including: a base chassis formed as a unitary member from a transparent material and having two faces positioned on the opposite sides to each other and individually formed as first and second mounting face sections; a display unit having a display panel thereon and attached to said first mounting face section; a control circuit board attached to said second mounting face section; a rear cover attached to said second mounting face section and configured to cover said control circuit board; a device mounting board having a semiconductor light emitting element disposed thereon; and a luminous lamp section formed at a position of said base chassis on the outer side of said display unit and configured to receive and emit light having been emitted from said semiconductor light emitting element and passed through the inside of said base chassis.

An image sensor having a plurality of photoelectric conversion elements that receive light and convert the light to electric charges, color filter layers having different spectral characteristics, each being provided corresponding to each of the photoelectric conversion elements, and a partition wall having a lower refractive index than that of the color filter layers provided at the boundary of each color filter layer. The image sensor is formed such that a space of the partition wall on the light exit side is narrower than a space of the partition wall on the light incident side.

The light source for back light assembly includes red LED, green LED, blue LED, diffusor, support member and reflecting plate. The red LED, the green LED and the blue LED are set on a carrier; the diffusor is set over the carrier and consists of one transmitting body and powder particles dispersed inside the transmitting body. The support member is set between the diffusor and the carrier, and the reflecting plate on two sides of the carrier and the diffusor. The diffusor of the present invention mixes three kinds of color light emitted by the red LED, the green LED and the blue LED into white light.

Disclosed is a light guide plate wherein the utilization efficiency of light is high, light with less luminance variation can be output, and a distribution such that the central part of the screen is brighter than the peripheral part can be achieved. The light guide plate comprises a rectangular light output surface, a light input surface through which light traveling in a direction approximately parallel to the light output surface is allowed to enter, a back surface on opposite side to the light output surface, and scattering particles dispersed inside. The light guide plate is so configured that the light guide plate has two or more layers which are stacked in a direction approximately perpendicular to the light output surface and which have particle densities of the scattering particles different from one another, the layers include a first layer which is on the light output surface side and the particle density of which is Npo and a second layer which is nearer to the back surface than the first layer and the particle density of which is Npr, the relation Npo<Npr is satisfied, the shape of the cross section taken in a direction perpendicular to the light input surface on the light output surface side is concave, the thicknesses of the first and second layers in a direction approximately perpendicular to the light output surfaces are varied from each other, and thereby the combined particle density of the light guide plate in a direction perpendicular to the light input surface is varied.

An object of the present invention is to improve the luminance in the front direction in a surface light source element including a light guide plate having a primary light source on at least one end surface, a reflection unit, and a prism sheet. A surface light source element using a light guide plate (1) with concave strips (9) on the bottom surface (7) side is characterized in that after passing through the prism sheet of the optical sheet on the light guide plate (1), in order to emit light in the front direction , the average slope R of the bottom surface of the light guide plate relative to the slope of the concave strip (9) is set within the range of the angle shown in the following formula, R≤{π / 2-sin-1(0.422 / nLGP)} / 2R≥sin-1(1 / nLGP)-sin-1(0.643 / nLGP) R: Average slope (radian) relative to the bottom surface of the light guide plate (1) nLGP: Refraction of the base material of the above-mentioned light guide plate (1) Rate.

A solid-state imaging device includes plural photosensitive elements 32, signal reading circuits and first type wiring 41 and 42. The photosensitive elements 32 are formed and arranged in a two-dimensional array state ion a light-receiving portion area of a semiconductor substrate 50. The signal reading circuits are formed so as to correspond to the respective photosensitive elements 32. Each signal reading circuit detects a captured image signal corresponding to signal charges of the photosensitive elements 32. The signal charges are accumulated in response to an amount of received light which comes from an object. The first type wiring 41 and 42 are formed of a high-concentration impurity diffused layer, are formed in one direction along a surface of the light-receiving portion area, and are connected to plural ones of the signal reading circuits which are provided along the one direction.

The invention relates to the filed of wireless communication and provides a lens antenna based on metamaterial. The lens antenna comprises a feed source, a waveguide, a metamaterial impedance transformer and a metamaterial lens. The feed source, the waveguide, the metamaterial impedance transformer and the metamaterial lens are sequentially connected. The metamaterial lens comprises a plurality of metamaterial lamellas with the same refractive index distribution, refractive indexes of the metamaterial lamellas are distributed in a circle shape with the center as the center of the circle, the refractive indexes are gradually decreased along with increase of the radius, and the refractive indexes at the position where the radius is the same are the same. According to the lens antenna based on the metamaterial, by adjusting distribution rules of dielectric constants and magnetic conductivities inside the metamaterial, the refractive indexes in the metamaterial can be exited in a paralleled mode through magnetic wave signals in the metamaterial, and therefore the lens antenna is good in directivity and large in benefit.

This invention provides a display device and a display method in which a light source irradiates a light transmitting member with light, the light transmitting member outputs a light component having directivity as display light, and the behavior of this light at the interface between a light transmitting material and the light transmitting member is switched between total reflection and transmission by changing the contact state between them, thereby changing the intensity of the display light.

The invention is an optical combining device, including a cooling component and many prisms. Each prism has a reflector coated with a high-reflection coating, and jointed on the cooling component through the reflector.

The invention relates to an LED (Light-Emitting Diode) plane light source and a method for increasing the light guiding efficiency thereof, belonging to the technical field of light sensing engineering application. The LED plane light source is characterized in that a light reflection layer is arranged between the side of a light guiding plate and a PCB (Printed Circuit Board), a light outlet is prearranged at a position on the light reflection layer corresponding to LED light sources, and the PCB, the light reflection layer and the light guiding plate clings to each other in sequence; and the LED light sources respectively arranged at two opposite sides of the light guiding plate are arranged in ways of mutual cross and ectopic complementation. One side of each of the LED light sources is additionally provided with the light reflection layer on which the light outlet is prearranged, thus the light reflection at the side of the light guiding plate is avoided, light emitted by an LED is directly led out through the light outlet by the light guiding plate, and the light incidence efficiency is increased; the LED light sources are arranged in ways of mutual cross and ectopic complementation, thus, the condition that the LED absorbs the light from the opposite LED per se is avoided, and the light guiding efficiency is increased; and on the basis of ensuring same brightness, the consumption of the LEDs can be reduced and the lost can be lowered.

In a light guide unit (40) of the present invention, a light source (22) is provided on a first end section (24d) of a light guide (24). Further, a side reflective member (26b), which can reflect light in the light guide (24), is provided on a second end section (24e) opposite to the first end section (24d) which is provided with the light source (22). The light guide (24) is continuously increased in thickness (D2, D4, and D5) (i) from the first end section (24d) provided with the light source (22) toward a center of the light guide (24) and (ii) also from the second end section (24e) provided with the side face reflective member (26b) toward the center of the light guide (24).

Provided is a light-source device comprising a light guide plate having a rectangular shape, a light source facing a side surface of the light guide plate, a reflective sheet having a rectangular shape facing one broad surface of the light guide plate, and a plate-shaped member provided at a distance from the one broad surface. The light source side edge of the reflective sheet is located inwards of a light source side edge of the light guide plate such that a part of the one broad surface on the light source side is formed as an exposed surface, and light leakage prevention unit filling the space between the exposed surface and the plate-shaped member is provided with a protruding portion protruding towards the light source. A reflective body is provided at a position corresponding to a clearance provided between the edge of the reflective sheet and the light-leakage prevention unit.

A backlight unit (BLU) is disclosed. The BLU may include a light emitting diode (LED) module including at least one LED chip mounted on a substrate in a chip-on-board (COB) type, and a light guide panel including an incidence surface configured to receive light emitted from an emission surface of the LED chip and to include at least one insertion recess disposed corresponding to the LED chip, such that the LED chip is bonded to the LED module to be inserted in the insertion recess.

In order to provide a light guide plate which has high light utilization efficiency and can emit light having less unevenness of luminance, and in which the a part near the center of a screen has a brighter distribution than that in a peripheral part of the screen, scattering particles are multi-dispersed particles produced by mixing particles having different particle diameters, the light guide plate has at least two layers which are overlied on each other in the direction almost perpendicular to the light output surface and contain the scattering particles at different particle concentrations, the at least two layers comprise a first layer which has a particle concentration of Npo and is arranged on the light output surface side and a second layer which has a particle concentration of Npr and is arranged on the backward side relative to the firs layer, Npo and Npr meet the relationship represented by the formula Npo < Npr, the cross section of the light guide plate on the light output surface side has a concaved shape when the cross section is taken in the direction perpendicular to the light incident surface, and the thicknesses of the first layer and the second layer are changed in the direction almost perpendicular to the light output surface so as to change the concentration of the synthetic particles in a part of the light guide plate which corresponds to the concentration-changed layers.